Combination dredge and conveyer.



F. P. EASTMAN. COMBINATION DBEDGB AND UONVEYBL APPLIOATION FILED emana,1909.

967,741. Patented Aug. 16,1910.

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ATTUHNEYS' F. P. BASTMAN. COMBINATION DRNDGE AND GONVBYBN. APPLICATIONFILED BEPT.8, 1909.

967, 741 Patented Aug. 16, 1910.

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P. P. EASTMAN. COMBINATION DREDGE AND UONVEYB APPLICATION FILED SEPT. 8,1909.

Patented Aug. 16, 1910.

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UNITED STATES PATENT OFFICE FRANKLIN P. EASTMAN, 0F NEW YORK, N. Y.

COMBINATION DREDGE AND CONVEYER.

To all whom it may concern:

Be it known that I, FRANKLIN P. EAST- MAN, a citizen of the UnitedStates, and a resident of the city of New York, borough of Brooklyn, inthe county of Kings and State of New York, have invented a new andImproved Combination Dredge and Conveyer, of which the following is afull, clear, and exact description.

The object of the invention is to provide a new and improved dredge andconveyer, more especially designed for dredging harbors and otherwater-ways of soft or hard material, and arranged to insure a ready andeasy filling of the .bucket and hauling the same, without danger ofspilling the contents, to the place of discharge.

For the p-urpose mentioned, the bucket is mounted to turn and to travel,the bucket with the mouth in an approximately vertical position beingdrawn forward into engagement with the material to be removed, and whenfilled the bucket is given a quarter turn to retain the filled material,after which the bucket is returned to the place of dumping and againturned to discharge its contents.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specication, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure l is a side elevation of the improved machine mounted on afloating vessel and showing the bucket in filling position; Fig. 2 is across section of the same on the line 2-2 of Fig. l; Fig. 3 is a planview of the same, parts being in section; Fig. 4 is an enlargedsectional side elevation of the bucket, the guideway and the operatingparts for the bucket in position for holding the bucket in fillingposition; Fig. 5 is a like View of the same and showing the bucket infilled position; and Fig. 6 is a cross section of the guideway, carriageand bucket in position thereon, the section being on the line e-e ofFig. 1.

As illustrated in Fig. 1, the combination dredge and conveyer is mountedon a oating vessel A, but other supports may be employed. A guideway Bis mounted to swing laterally on the deck of the ioating vessel A, andon the said guideway B travels a carriage C, in which is mounted toswing a bucket D, approximately semicircular in longitudinal section andadapted to be Specification of Letters Patent.

Application filed September 8, 1909.

Patented Aug. 16, 1910.

Serial No. 516,699.

drawn into the material E to be dredged at the time the mouth of thebucket D extends forward in an approximately upright position, as shownin Figs. l and 4f, the bucket' during this forward movement filling withthe material, to be then righted or moved into normal position, as shownin Fig. 5. The carriage C with the filled bucket held thereon is thendrawn inward to the floatmg vessel A (see dotted lines in Fig. l), andthe'bucket D is then turned into dumping position to dump its contentsonto a tiltable platform F, extending transversely of the vessel A, todeliver the material to either side onto a chute Gr, leading to adumping scow or other receptacle employed for carrying the material to aplace of discharge.

T he guideway B 1s made in two main sect-ions B and B2, connected witheach other by hinges B3, the inner guideway section B extendinghorizontally and being pivoted at B4 on a frame-work A erected on thedeck of the vessel A. The forward en d of the guideway section B isprovided with overhead pulleys B5 traveling on a segmental track A2,erected on the vessel A, as plainly indicated in Figs. 1, 2 and 3. Theouter section B2, when in working position, extends downward and outwardpast one end of the vessel A, and the forward end B6 of the guideway B2extends approximately in a horizontal position at the time the machineis at work. The terminal of the horizontal portion BG is provided withan upwardly-extending arm B7, to which is secured one end of a cable H,extending upward and inward, and passing over a guide pulley H,journaled on the A-frame I mounted on the vessel A, and of the usualconstruction. The cable H, after leaving the guide pulley H', extendsover guide pulleys H2, H3, mounted on the guideway section B, the cablefinally passing to a drum J mounted on the vessel A and driven bysuitable machinery. Thus by revolvin the drum J the section B2 can beswung or up according to the position of the material to be removed.

The carriage C is provided with front and rear wheels traveling on theguideway B, and on the axles C of the front wheels is mounted to swingthe bucket D, as plainly indicated in Figs. 4, 5 and 6, the buckethaving its forward edge D sharpened and projecting somewhat beyond thestraight sides, so that the sharpened end readily digs own into thematerial E at the time the carriage C is drawn forward in the horizontalend Bs of the guideway B.

To the axle C is secured one end of a cable K, extending first forwardlyover pulleys K, K2, journaled on the end B and the arm B7, the cablethen extending rearwardly and passing under a guide pulley K3, to thenpass over a guide pulley K4, journaled on the section B adjacent to theguide pulley I-l, previously mentioned, the cable then extending to awinding drum K mounted on the vessel A. l/Vhen the drum K5 winds up thecable K, the carriage C is drawn outward in the guideway B. A secondcable L is secured to the rear axle C2 of the carriage C and then passesaround a sheave L mounted on the rear end of the bucket D, the cable Lthen extending inwardly and passing over a pulley L2 mounted on thesection B of the guideway B, the cable then winding on the drum N,arranged on the vessel A. Thus when the cable is wound up on the drum N,the bucket D is drawn from the filled position shown in Fig. 4 into thenormal position shown in Fig. 5, and a further winding up of the cable Lcauses the carriage C with the filled bucket D thereon to travel inwardon the guideway B to the dumping position on board the vessel A. A thirdcable C extends around the bottom of the bucket D, to connect with theforward end thereof, and this cable O passes over a guide pulley O,arranged adjacent to the pulley H3, to then wind on a drum P on thevessel A and under the control of the engineer in charge of the machine,so that when the cable O is wound up it swings the bucket D into open orfilling position, as indicated in Fig. 4, and holds it in this positionduring the time the bucket D is drawn forward along the horizontal endB6 of the guideway B, for lling the bucket with the material E to beremoved.

When the machine is in use the carriage C is drawn forward along theguideway B by winding up the cable K, as previously eX- plained, and theotherl cables L and C unwinding correspondingly. When the bucket Dreaches the beginning of the horizontal portion B, then the cable O iswound up, to swing the bucket D into the filling position indicated inFigs. 1 and 4, so that on the further forward movement of the bucket iD, the latter takes up the material E, the

winding up of the cable L now causes the carriage C and with it thebucket D, to travel inward along the guideway B, until the bucket Dreaches a position over the platform F, and then the bucket is againtilted by winding up the cable O correspondingly, so that the contentsof the bucket D are discharged onto the platform F, from which thematerial slides down onto the corresponding chute G, delivering thematerial to a scow or the like. The platform F is pivoted at its middleon the vessel A, to allow of tilting the platform to either side, aswill be readily understood by reference to Fig. 2. After the contentsare dumped, the bucket D is again moved forward on the guideway B, andin the meantime the guideway is swung laterally, so that when the bucketreaches the horizontal portion BG, the bucket is opposite anotherembankment of material E, so that the bucket can be again lilled, asabove described, and returned for dumping. Thus by the arrangementdescribed, the material can be removed in layers, leaving the surfacelevel. It will also be understood that by the arrangement described alarge area of material can be removed without requiring shifting of thevessel A, as the guideway B can be swung laterally and the forwardsection B2 can be lowered to the required depth. It will also be noticedthat by the arrangement described material under piers or in othercomparatively inaccessible places can be readily reached and removed,but it is understood that the machine may be used on land, being mountedon a suitable support instead of a floating vessel, as described andshown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

l. A combination dredge and conveyer, comprising a bucket mounted toswing and to travel bodily to and from the material to be removed, meansfor drawing the bucket forward and backward, the bucket on its forwardmovement passing into the material at the time the mouth of the bucketis in an approximately vertical position, and means for returning thebucket to normal upright position.

2. A combination dredge and conveyer, comprising a support, a boommounted to swing on the said support and provided with guideways, abucket of approximately semicircular shape, and a carriage adapted totravel in the said guideways and on which the bucket is mounted to turnfrom a normal upright position to a lilling position, the mouth of thebucket standing approximately vertical Iduring the lillin operation,means for moving the carriage orward and backward on the said guideways,and means for turning the said bucket into lilling position and holdingit therein during the forward filling movement of the bucket.

3. A combination dredge and conveyer, comprising a support, a bucket, aguideway for the said bucket to travel on, the guideway being made inSections hinged together, one section being pivoted on the said supportto swing laterally, and means for supporting the free end of the othersection and allowing the same to swing laterally with the said pivotedsection.

4. A combination dredge and conveyer, comprising a support, a bucket, aguideway for the sald bucket to travel on, the guideway being made insections hinged together, one section being pivoted on the Said supportto swing laterally and the free end of the other section beingapproximately horizontal when in working position, and means forsupporting the free end of the other section and allowing the same toswing laterally with the said pivoted section.

5. A combination dredge and conveyer, comprising a support, a guidewaymounted on the said support, a bucket mounted to travel on the saidguideway, a tilting platform on the said support for receiving excavatedmaterial from the said bucket, and chutes on the said support andextending beyond the sides thereof, the inner ends of the chutesextending under the ends of the said platform for receiving the materialtherefrom.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANKLIN I). EASTMAN.

Witnesses:

THEo. G. Hos'rm, JOHN I?. DAVIS.

